Missouri Revised Statutes Title XI. Education and Libraries § 171.021. Schools receiving public moneys to display United States flag--requirement to recite Pledge of Allegiance once per school day--students not required to recite

1. Every school in this state which is supported in whole or in part by public moneys, during the hours while school is in session, shall display in some prominent place either upon the outside of the school building or upon a pole erected in the school yard the flag of the United States of America.

2. Every school in this state which is supported in whole or in part by public moneys shall ensure that the Pledge of Allegiance to the flag of the United States of America is recited in at least one scheduled class of every pupil enrolled in that school no less often than once per school day. Flags for display in individual classrooms may be provided by voluntary donation by any person. No student shall be required to recite the Pledge of Allegiance.